Results 81 to 90 of about 56,706 (218)

Origin of Silicic Magmatism at the Katla Volcanic Complex, South Iceland

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 6, June 2025.
Abstract The Katla volcano is a bimodal caldera complex within Iceland's basalt‐dominated Eastern Volcanic Zone. To unravel the petrogenesis of silica‐rich rocks from Katla, we provide new δ18O values for almost 60 basaltic, intermediate, and high‐silica eruptive rocks, including a number of partially melted felsic xenoliths.
Valentin R. Troll   +11 more
wiley   +1 more source

Constraining the primordial initial mass function with stellar archaeology

open access: yes, 2015
We present a new near-field cosmological probe of the initial mass function (IMF) of the first stars. Specifically, we constrain the lower-mass limit of the Population III (Pop III) IMF with the total number of stars in large, unbiased surveys of the ...
Bromm, Volker   +3 more
core   +2 more sources

The Relativized A Priori, the Historical A Priori, and the Symbolic Form

open access: yesPhilosophy Compass, Volume 20, Issue 6, June 2025.
ABSTRACT Recent work in philosophy of science has suggested that scientific paradigms in the wake of revolutions can be conceived as relativized a priori frameworks. In this paper, I put these accounts in dialog with two accounts of broadly “cultural” accounts of the relativized a priori in the history of philosophy: Ernst Cassirer's account of ...
Sabina Vaccarino Bremner
wiley   +1 more source

Galactic archaeology through the lens of asteroseismology

open access: yes, 2023
Presentation given at the conference Bulge40: "The Galactic bulge and beyond: A conference in honor of Mike Rich", 18-22 September 2023, Elba Island (Italy)
openaire   +2 more sources

TransformerPayne: Enhancing Spectral Emulation Accuracy and Data Efficiency by Capturing Long-range Correlations

open access: yesThe Astrophysical Journal
Stellar spectra emulators often rely on large grids and tend to reach a plateau in emulation accuracy, leading to significant systematic errors when inferring stellar properties.
Tomasz Różański   +2 more
doaj   +1 more source

Starry Messages: Searching for Signatures of Interstellar Archaeology [PDF]

open access: yesJ.Br.Interplanet.Soc.63:90,2010, 2010
Searching for signatures of cosmic-scale archaeological artifacts such as Dyson spheres or Kardashev civilizations is an interesting alternative to conventional SETI. Uncovering such an artifact does not require the intentional transmission of a signal on the part of the original civilization.
arxiv  

Stellar Archaeology -- Exploring the Universe with Metal-Poor Stars

open access: yes, 2010
The abundance patterns of the most metal-poor stars in the Galactic halo and small dwarf galaxies provide us with a wealth of information about the early Universe.
Aoki   +148 more
core   +1 more source

Spatial Dynamics of Harbour Porpoise Phocoena phocoena Relative to Local Hydrodynamics and Environmental Conditions

open access: yesEcology and Evolution, Volume 15, Issue 5, May 2025.
This study uses a multidisciplinary approach to model the habitat use and site occurrence of harbour porpoises, identifying areas where they were seen spending most time in the Skerries and Causeway Special Area of Conservation. The results show that porpoises are most concentrated within 500 m of the shoreline, particularly near headlands with coarse ...
Robert Mzungu Runya   +4 more
wiley   +1 more source

The GALAH Survey: using galactic archaeology to refine our knowledge of TESS target stars [PDF]

open access: bronze, 2021
Jake T. Clark   +31 more
openalex   +1 more source

Asteroseismology And Galactic Archaeology

open access: yes, 2018
The Milky Way is a complex system, with dynamical and chemical substructures, where several competing processes such as mergers, secular evolution, gas accretion and gas take place. To study how such a giant spiral galaxy was formed and evolved, we need to reconstruct the sequence of its main formation events with high temporal resolution ...
openaire   +2 more sources

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